Regio- and stereo-specific nitrile hydrolysis by the nitrile hydratase fromRhodococcusAJ270
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چکیده
منابع مشابه
Aldoxime dehydratase co-existing with nitrile hydratase and amidase in the iron-type nitrile hydratase-producer Rhodococcus sp. N-771.
We identified an aldoxime dehydratase (Oxd) gene in the 5'-flanking region of the nitrile hydratase-amidase gene cluster in the photoreactive iron-type nitrile hydratase-producer, Rhodococcus sp. N-771. The enzyme showed 96.3%, 77.6%, and 30.4% identities with the Oxds of Rhodococcus globerulus A-4, Pseudomonas chlororaphis B23, and Bacillus sp. OxB-1, respectively. The enzyme was expressed in ...
متن کاملPost-translational modifications in nitrile hydratase family
Fe-type nitrile hydratase (NHase) from Rhodococcus sp. N771 has a novel non-heme iron active center with two post-translationally modified cysteine residues, cysteine-sulfenic and -sulfinic acids. The modified residues are involved in the sequence motif, Cys-Xxx-Leu-Cys-Ser-Cys (Xxx = Ser(Fetype)/Thr(Co-type)), which is conserved among all known NHases as well as in the homologous enzyme, thioc...
متن کاملMolecular dynamics simulations of the photoactive protein nitrile hydratase.
Nitrile hydratase (NHase) is an enzyme used in the industrial biotechnological production of acrylamide. The active site, which contains nonheme iron or noncorrin cobalt, is buried in the protein core at the interface of two domains, alpha and beta. Hydrogen bonds between betaArg-56 and alphaCys-114 sulfenic acid (alphaCEA114) are important to maintain the enzymatic activity. The enzyme may be ...
متن کاملA Nitrile Hydratase in the Eukaryote Monosiga brevicollis
Bacterial nitrile hydratase (NHases) are important industrial catalysts and waste water remediation tools. In a global computational screening of conventional and metagenomic sequence data for NHases, we detected the two usually separated NHase subunits fused in one protein of the choanoflagellate Monosiga brevicollis, a recently sequenced unicellular model organism from the closest sister grou...
متن کاملNitrile Hydratase Activity of Nocardia corallina B-276
Nitrile is a functional group that usually is transformed to amides or carboxylic acids under strong reaction conditions in acidic or basic media and high temperatures. Amides have also been prepared from nitriles at room temperature using strong oxidizing agents such as hydrogen peroxide or sodium superoxide in DMSO. On the other hand biocatalytic hydrolysis of nitriles mediated by nitrilase, ...
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ژورنال
عنوان ژورنال: FEMS Microbiology Letters
سال: 1995
ISSN: 0378-1097,1574-6968
DOI: 10.1111/j.1574-6968.1995.tb07557.x